fix(display): docked idle wake + dump without SSH (#127)

Recover from DPMS/lock blackout without a second machine: undock/enable
always issue dpms on; hypridle on-resume and after_sleep run
nomarchy-display-wake (zero-output undock rescue + auto-dump).
nomarchy-display-dump writes ~/nomarchy-display-dump-*.txt (SUPER+SHIFT+D
or Ctrl+Alt+F3 TTY). HARDWARE-QUEUE #127 no longer requires SSH.

V1: nix flake check --no-build. V3: docked idle on AMD box still open.

modules/home/keybinds.nix

@@ -67,6 +67,10 @@
     # place that decides how a lock actually looks.
     { mods = "$mod CTRL";   key = "L";      action = "exec, loginctl lock-session";   desc = "Lock screen"; group = "Menu"; }
     { mods = "$mod SHIFT";  key = "C";      action = "exec, hyprpicker -a";           desc = "Color picker (→ clipboard)"; group = "Menu"; }
+    # #127: dump display state to ~/nomarchy-display-dump-*.txt without SSH.
+    # If the seat is locked, hyprlock may swallow this — use Ctrl+Alt+F3 and
+    # run `nomarchy-display-dump` / `nomarchy-display-wake` on the TTY instead.
+    { mods = "$mod SHIFT";  key = "D";      action = "exec, nomarchy-display-dump keybind"; desc = "Dump display diagnostics (~/)"; group = "Menu"; }
 
     # Focus — SUPER + arrow keys.
     { mods = "$mod";        key = "left";   action = "movefocus, l";                  desc = "Focus left"; group = "Window"; }